Electronic mouse



FIG. 1 is a perspective view of an electronic mouse showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a right side view thereof.

The broken lines shown in the drawings represent portions of the electronic mouse that form no part of the claimed design. 

The ornamental design for an electronic mouse, as shown and described. 